KR102283031B1 - Manufacturing method of T-shaped pipe using a T forming machine - Google Patents

Abstract

The present invention relates to a manufacturing method of a t-pipe using a t-forming machine, which sequentially comprises: a step of mounting a pipe (10) in an upper portion of a block; a step of fixing both sides of the pipe (10) by a fixing chuck (600); a step of enabling the fixing chuck (600) to release fixation of the pipe (10); a step of fixing both sides of the pipe (10) by the fixing chuck (600); a step of allowing a worker to insert a conical member (410) into a hole of the pipe (10); a step of allowing the worker to insert a connection rod (420) into the hole (11) of the pipe (10) to combine the connection rod with the conical member (410); a step of fastening the connection rod (420) to a t-forming cylinder (430); a step of withdrawing the conical member (410) to the outside of the pipe (10); a step of enabling the fixing chuck (600) to release fixation of the pipe (10); a step of fixating both sides of the pipe (10) by the fixing chuck (600); a step of allowing an upper portion of a protrusion unit (12) of the pipe (10) to be smoothly trimmed by a cutting unit (500); and a step of withdrawing the pipe (10) from the fixing chuck (600) when cutting is completed.

Description

Manufacturing method of a tee-shaped pipe using a tee forming machine {Manufacturing method of T-shaped pipe using a T forming machine}

The present invention relates to a method of manufacturing a tee pipe connection part, and more specifically, to a manufacturing method of a tee-type pipe using a tee forming machine that processes a plurality of holes in a pipe coupling part in a tee pipe which is a connection part of plumbing construction.

In general, a stainless pipe that is responsible for the transport of fluid is an important element that plays a role like a nerve in the industry related thereto. In addition, the valve and coupling part used to connect the stainless steel pipe are widely used in industrial fields from basic industries to high-tech industries as a mechanism for controlling the flow of fluid. In particular, precision stainless pipe coupling elements and valve products used for instrumentation are being applied in all fields related to the development of national industries such as semiconductors, shipbuilding, petrochemicals, aviation, and military, which are key industries.

In particular, such a piping connection member is widely used in apartments. The existing water supply method is to install an elevated water tank on the roof of the apartment, pump it up with a water pump and supply it to each home by natural water pressure. Currently, the high water tank is eliminated and the water pressure is automatically adjusted and supplied directly to the home by the booster pump system from the underground water tank, and many branching parts are required for the piping.

And, when branching in a "⊥" shape to the booster pipe, conventionally, according to the diameter of the lower and upper pipe, the two pipes are respectively processed and welded or screwed together. There is a problem in that the labor and cost are high, and the rigidity of the assembly part is weak.

Therefore, the main pipe is pulled up according to the diameter of the branching pipe to make a “⊥” shape, butt welded without pipe processing to improve the rigidity and durability of the joint part and to process the hole in the pipe connection part for easy maintenance of the pipe condition is needed.

In addition, in Patent Publication Registration No. 10-0741373, the pipe material to be molded as developed for the purpose of improving productivity and producing a product of precise and uniform quality in a large-sized pipe often used as a water supply pipe is placed outside the molding machine. It relates to a tee (T) pipe forming machine for piping, which is installed in a small space by reducing the size of the molding machine to be put into the molding machine after being seated in the lower mold. The present invention is a lower mold 10 fixed to the upper side of the moving plate 12 that is operated forward and backward by a motor 11, and the front of the lower mold 10 and the center of the front where the lower mold 10 is stopped. An extraction unit 20 equipped with an extraction cylinder 21, an upper mold 30 having a compression cylinder 31 installed thereon, and an elastic cylinder 41 on the lower bottom surface of the central position of the upper mold 30 A tee tube forming machine for piping is disclosed, characterized in that the tanji part 40 and the molding cylinders 50 and 51 are mounted on the left and right sides, respectively.

In addition, in Patent Publication No. 20-0425732, the pipe material to be molded is applied to the outside of the molding machine as it was developed for the purpose of improving productivity and producing products of precise and uniform quality in large-sized pipes often used as water supply pipes. It relates to a tee (T) pipe forming machine for piping, which is installed in a small space by reducing the size of the molding machine to be put into the molding machine after being seated in the lower mold. The present invention is a lower mold 10 fixed to the upper side of the moving plate 12 that is operated forward and backward by a motor 11, and the front of the lower mold 10 and the front center where the lower mold 10 is stopped. An extraction unit 20 equipped with an extraction cylinder 21, an upper mold 30 having a compression cylinder 31 installed thereon, and an elastic cylinder 41 on the lower bottom surface of the central position of the upper mold 30 A tee tube forming machine for piping is disclosed, characterized in that the tanji part 40 and the molding cylinders 50 and 51 are mounted on the left and right sides, respectively.

However, in the prior art, the pipe hole of the main pipe is processed into a “U” shape and then the connected pipe is also processed into a “U” shape according to the lower shape and then welded, making precision work difficult, poor appearance, and constant operation of the operator and Management is required, and there is a problem in that the defective rate of the product is increased.

Therefore, the present invention has been devised to solve the above problems, and it is possible to produce a product of precise and uniform quality, and it is possible to form a plurality of pipes with one setting, and as the drawing standard is not limited, the product It is to provide a method of manufacturing a tee-type pipe using a tee-forming machine that can improve the quality and mass-produce.

The present invention comprises the steps of coupling a block 210 conforming to the pipe 10 standard to the transfer bed 200 installed in the lower portion of the support frame 100, and then seating the pipe 10 on the upper portion of the block; The pipe 10 seated in the block 210 is moved forward by the transfer bed 200 to be positioned under the drill part 300 , and both sides of the pipe 10 are attached to the fixing chuck 600 . fixing; After machining the hole 11 on the outer periphery by the drill part 300, the fixing chuck 600 releasing the fixing of the pipe (10); The pipe 10 in which the hole 11 is formed by the drill part 300 is advanced by the transfer bed 200 and moved to the lower part of the tee forming part 400, and both sides of the pipe 10 are fixed with a chuck. fixing to (600); inserting the conical member 410 inside the hole of the pipe 10 by the operator; The operator inserts the connecting rod 420 into the hole 11 of the pipe 10 to combine with the conical member 410; fastening the connecting rod 420 to the T-shaped cylinder 430; elevating the tee-forming cylinder 430 to pull out the conical member 410 to the outside of the pipe 10; after the edge of the hole 11 of the pipe 10 is elongated and expanded to form the protrusion 12 outwardly, the fixing chuck 600 releasing the fixing of the pipe 10; a step of advancing the pipe 10 in which the protrusion 12 is formed in the tee forming part 400 and transferring it to the lower part of the cutting part 500, and fixing both sides of the pipe 10 with a fixing chuck 600; a step in which the upper part of the protrusion part 12 of the pipe 10 is smoothed by the cutting part 500; When the cutting is completed, the step of taking out the pipe 10 from the fixed chuck 600; It is characterized in that it proceeds sequentially.

Therefore, according to the present invention, it is possible to produce products of precise and uniform quality by using a specialized forming jig and shortening the work process, forming work on multiple pipes with one setting is possible, and as there is no limit to the drawing standard, the product There is a remarkable effect of quality improvement and mass production possible.

1 is a front view of a tea forming machine of a method of manufacturing a tee-type pipe using a tea forming machine of the present invention;
Figure 2 is a top view of the tea forming machine of the method of manufacturing a tee-type pipe using the tea forming machine of the present invention;
Figure 3 is a side view of the drill part of the tea forming machine of the method of manufacturing a tee-type pipe using the tea forming machine of the present invention;
Figure 4 is a side view of the forming machine of the tea forming machine of the method of manufacturing a tee-type pipe using the tea forming machine of the present invention
5 is a view of the cone member and the connecting rod of the tea forming machine of the method of manufacturing a tee-type pipe using the tea forming machine of the present invention;
Figure 6 is a pipe structure diagram of a method of manufacturing a tee-type pipe using a tee-forming machine of the present invention;
7 is a photograph of a pipe of a method of manufacturing a tee-type pipe using a tea forming machine of the present invention;
8 is a picture of connecting a piping member of a method of manufacturing a tee-type pipe using a tee-forming machine of the present invention;
9 is a cone member diagram of a method of manufacturing a tee-type pipe using a tee-forming machine of the present invention;

The method of manufacturing a tee-type pipe using the tee-forming machine of the present invention is to combine the block 210 that meets the pipe 10 standard to the transfer bed 200 installed at the lower part of the support frame 100, and then the pipe ( 10) seating; The pipe 10 seated in the block 210 is moved forward by the transfer bed 200 to be positioned under the drill part 300 , and both sides of the pipe 10 are attached to the fixing chuck 600 . fixing; After machining the hole 11 on the outer periphery by the drill part 300, the fixing chuck 600 releasing the fixing of the pipe (10); The pipe 10 in which the hole 11 is formed by the drill part 300 is advanced by the transfer bed 200 and moved to the lower part of the tee forming part 400, and both sides of the pipe 10 are fixed with a chuck. fixing to (600); inserting the conical member 410 inside the hole of the pipe 10 by the operator; The operator inserts the connecting rod 420 into the hole 11 of the pipe 10 to combine with the conical member 410; fastening the connecting rod 420 to the T-shaped cylinder 430; elevating the tee-forming cylinder 430 to pull out the conical member 410 to the outside of the pipe 10; after the edge of the hole 11 of the pipe 10 is elongated and expanded to form the protrusion 12 outwardly, the fixing chuck 600 releasing the fixing of the pipe 10; a step of advancing the pipe 10 in which the protrusion 12 is formed in the tee forming part 400 and transferring it to the lower part of the cutting part 500, and fixing both sides of the pipe 10 with a fixing chuck 600; cutting the upper surface of the protruding part 12 of the pipe 10 by a cutting part 500; When the cutting is completed, the step of taking out the pipe 10 from the fixed chuck 600; It is characterized in that it proceeds sequentially.

And the hole 11 formed on the outer periphery of the pipe 10 by the drill part 300 is in the form of a long hole, and the hole 11 is a protrusion 12 having a circular cross section in the tee forming part 400 . characterized in that it is formed.

The present invention will be described in detail with reference to the accompanying drawings as follows.

1 is a front view of a tea forming machine of a method of manufacturing a tee-type pipe using a tea forming machine of the present invention, FIG. 2 is a plan view of a tea forming machine of a method of manufacturing a tee-type pipe using a tea forming machine of the present invention, and FIG. 3 is a tee of the present invention It is a side view of the drill part of the tee-forming machine of the manufacturing method of the tee-type pipe using the forming machine. And Figure 4 is a side view of the forming machine of the tea forming machine of the method of manufacturing a tee-type pipe using the tea forming machine of the present invention, Figure 5 is the cone member and connecting rod of the tea forming machine of the method of manufacturing a tee-type pipe using the tea forming machine of the present invention Figure 6 is a pipe structure diagram of a method of manufacturing a tee-type pipe using the tea forming machine of the present invention. In addition, Figure 7 is a photograph of a pipe of a method of manufacturing a tee-type pipe using the tea-forming machine of the present invention, Figure 8 is a photograph of connecting a piping member of a method of manufacturing a tee-type pipe using the tea-forming machine of the present invention, Figure 9 is a tea-forming of the present invention It is a cone member diagram of a manufacturing method of a tee-type pipe using a machine.

The tea forming machine used in the method of manufacturing a tee-type pipe using the tea forming machine of the present invention includes a support frame 100 and a transfer bed 200 that is installed on the upper surface of the support frame and moves forward and backward, on which the pipe is seated; , Left and right fixing chucks 600 for fixing the pipe mounted on the transfer bed, a drill part 300 installed on the upper part of the support frame to form a hole in the pipe, and a hole formed by the drill part ( 11) is composed of a tee forming part 400 for forming a protrusion 12 by inserting a conical member 410 into the inside and pulling outward, and a cutting part 500 for cutting the upper end of the protrusion.

The transfer bed 200 is installed on the upper surface of the support frame 100 and moves forward and backward in the longitudinal direction of the support frame, the block 210 is coupled to the upper surface, and the pipe 10 is seated on the upper surface of the block .

And the pipe 10 is seated on the upper surface of the block 210, and the worker replaces blocks of various sizes according to the diameter of the pipe so that the pipe 10 is not only stably placed, but also depends on the size of the pipe 10. Regardless, make sure that the top dead center (the position at the top of the pipe) is the same, so that precise work can be done.

A coupling hole is formed on the side of the block 210 used in the present invention so that blocks of various sizes can be attached and detached. let it settle down

On the other hand, on both sides of the block 210 on which the pipe 10 is seated, a pair of left and right fixing chucks 600 for fixing the pipe are installed, and the left and right fixing chucks are positioned so that the pipe is located between them. As configured to face each other, the pair of fixing chucks 600 are expanded and contracted by the cylinder to fix the pipe.

delete

On the other hand, a drill part 300 is installed on the upper portion of the support frame 100, and the drill part forms a hole 11 in the pipe 10 transported by a transfer bed, and the drill part is driven by a driving motor. It can be realized by applying the conventional technique consisting of a rotating processing unit and a cylinder for elevating and lowering the processing unit.

On the other hand, the pipe 10 in which the hole 11 is formed by the drill part 300 is moved to the lower part of the tee forming part 400, and the outer periphery of the pipe 10 hole 11 by the tee forming part. A protrusion 12 protruding upward is formed.

The tee forming part 400 is composed of a pipe holder for fixing the pipe by pressing the pipe 10 from the upper portion, and a tee forming cylinder 430 for pulling the conical member 410 inserted inside the hole of the pipe to the outside. .

Therefore, the operator inserts the conical member 410 inside the hole of the pipe 10, fastens the conical member with the tee forming cylinder 430, and then elevates the tee forming cylinder to move the conical member 410 to the outside of the pipe. and, accordingly, the outer periphery of the hole 11 of the pipe 10 protrudes above the hole to form the protrusion 12 .

And the conical member 410 and the tee forming cylinder 430 for pulling the conical member are coupled by a connecting rod 420, and the upper part of the connecting rod 420 is mounted on the tee forming cylinder 430, and the lower part is a cone. The member 410 and the detachably coupled.

delete

In addition, a screw surface is formed on the outer periphery of the lower side of the connecting rod 420, and a screw surface is also formed on the inner periphery of the conical member 410 coupled to the lower portion of the connecting rod, so that the connecting rod and the conical member are screwed. are combined

And the conical member 410 is in the form of a cone, and the vertical section is formed in a trapezoidal shape with a larger area at the bottom than at the top, and the conical member 410 is put inside the hole 11 of the pipe 10 and from the inside to the outside of the hole By pulling the conical member to the direction, the edge of the hole 11 of the pipe is extended and expanded to form the protrusion 12 in the outward direction.

27일 때에는

12-20,

42일 때에는

18-28,

48일 때에는

20-35,

60일 때에는

29-45로 하는 것이 바람직하다.And the size of the hole 11 processed in the form of a long hole in the drill part 300 is the diameter of the protrusion 12

on the 27th

12-20,

at 42

18-28,

at 48

20-35,

at 60

It is preferable to set it as 29-45.

27일 때에는 A=15° L=35mm,

42일 때에는 A=13° L=40mm,

48일 때에는 A=18° L=45mm,

60일 때에는 A=17° L=55mm로 하는 것이 바람직하다.In addition, when processing the protrusion 12 in the tee forming part 400 , in order to prevent defects such as tearing and pipe bending of the pipe 10 hole 11 , the inclination and height of the conical member 410 are of the protrusion 12 . Applied differently depending on the diameter. That is, the dimensions of A, which is the inclination angle, and L, which is the height, of the conical member 410 shown in FIG.

For 27, A=15° L=35mm,

At 42, A=13° L=40mm,

At 48, A=18° L=45mm,

When it is 60, it is preferable to set it as A=17 degree L=55mm.

And in order to recognize the processing defect of the protrusion 12 in advance, a pressure sensor is installed at the portion where the tee-forming cylinder 430 and the connecting rod 420 are fastened, and the tee-shaped cylinder 430 to process the protrusion 12 . When elevating the connecting rod 420 to which the conical member 410 is coupled with normal force, a constant pressure is applied to the fastening portion and there is no pressure change, so the pressure sensor does not work. When the pulling force of the cylinder 430 changes, a change occurs in the force that the tee-shaped cylinder raises and lowers the connecting rod 420, the pressure sensor detects this pressure change, and sends a signal to the control unit, and the control unit through the alarm By giving an alarm, the operator recognizes a situation in which a defect is occurring in the processing of the protrusion 12 so that a quick response can be made.

In addition, if the connecting rod 420 is not installed vertically, the conical member 410 coupled with the connecting rod is not installed perpendicularly to the hole 11, so a defect may occur. By installing a level in the middle of the connecting rod 420, the operator After coupling the connecting rod 420 to the false conical member 410, it is confirmed that the horizontal is maintained, and the protrusion 12 is processed to reduce the occurrence of defects. And if horizontal maintenance is not repeatedly achieved even when the conical member and the connecting rod are combined, it may be determined that the coupling thread is worn or the coupling portion is worn, and if the connecting rod and the conical portion are replaced, defects can be reduced.

In addition, in order to easily insert the conical member 410 into the pipe, the operator uses a long conical member tray in the longitudinal direction of the pipe, and the tray has a rectangular rectangular hole penetrating up and down, A square protrusion having a vertical cross section is formed on the bottom surface of the conical member corresponding to this, and the square protrusion of the conical member is seated in the square hole of the conical member tray, so that the operator can easily insert the conical member into the pipe do.

In addition, when the protrusion is formed on the pipe by the tee-shaped cylinder 430, the pipe 10 is pressed by the pipe holder, and the pipe fixing cylinder is coupled to the upper part of the pipe holder.

And in the present invention, as an embodiment, a pair of pipe holder is installed vertically, the pair of pipe holder is integrally coupled by a horizontal frame, and a pipe fixing cylinder is coupled to the upper part of the pipe holder, respectively, The pipe holder moves up and down at the same time to stably press the pipe.

In addition, a guide plate is coupled to the lower portion of the pipe holder, and the vertical cross-section of the guide plate has a concave lower portion to stably press the pipe.

In addition, as many holes as the number of tee-forming cylinders are formed in the guide plate so that the tee-forming cylinder passes through, reinforcing ribs are formed on the outer periphery of the hole to reinforce the guide plate.

Meanwhile, the pipe 10 in which the protrusion 12 is formed in the tee forming part 400 is transferred to the cutting part 500 , and the upper surface of the pipe protrusion 12 is smoothed by the cutting part 500 .

The cutting part can be realized by applying a conventional technique consisting of a cutting tool rotating according to the driving of a motor, and a cylinder coupled to the upper part of the cutting tool to elevate the cutting tool.

Therefore, in the present invention, the drill part 300 , the tee forming part 400 , and the cutting part 500 are sequentially installed on the upper part of the support frame 100 in the moving direction of the pipe 10 .

In addition, the drill part, the tee forming part and the cutting part used in the present invention are capable of moving speed control, and the drill part, the tee forming part and the cutting part are first descended at a low speed in order to process the pipe 10, then the pipe As it approaches, the speed is slowed down and the work proceeds stably.

Hereinafter, a method for manufacturing a tee-type pipe according to the tee forming machine of the present invention will be described.

First, after coupling the block 210 to the transfer bed 200, the pipe 10 is seated on the upper part of the block, and the fixed rod coupled to the front of the transfer bed 200 is moved forward and backward to fit the length of the pipe. Adjust to fix the front end of the pipe.

Then, both sides of the pipe 10 are fixed by left and right fixed chucks 600, the left fixed chuck having a strong pressure moves first, and the right fixed chuck having a relatively weak pressure is moved next to the pipe 10 to fix

The pipe 10 fixed by the fixing chuck 600 is moved as the transfer bed 200 is moved forward and is positioned under the drill part 300 , and the pipe 10 is fixed by the drill part 300 . A hole 11 is formed in the outer periphery of (10).

Thereafter, the transfer bed 200 on which the pipe in which the hole 11 is formed is seated is moved to the lower part of the tee forming part 400, and the operator inserts the conical member 410 inside the hole of the pipe 10 and , After fastening the conical member with the tee forming cylinder 430, the conical member 410 is pulled out of the pipe by elevating the tee forming cylinder, and accordingly, the outer periphery of the hole 11 of the pipe 10 is It protrudes to the upper part of the hole to form the protrusion (12).

That is, by putting the conical member inside the pipe and pulling the conical member from the inside of the hole to the outside, the hole edge of the pipe is extended and expanded to form the protrusion 12 in the outward direction.

And when the protrusion is formed on the pipe by the tee-forming cylinder, the pipe is pressed by the pipe holder.

Finally, the pipe 10 in which the protrusion is formed in the tee forming part is advanced and transferred to the cutting part 500 , and the upper surface of the pipe protrusion 12 is smoothly followed by the cutting part 500 .

And when the cutting is completed, when the pipe 10 is taken out from the fixed chuck 600, the processing of the protrusion 12 is completed.

Therefore, after coupling the block 210 conforming to the pipe 10 standard to the transfer bed 200 installed in the lower portion of the support frame 100, seating the pipe 10 on the upper part of the block; The pipe 10 seated in the block 210 is moved forward by the transfer bed 200 to be positioned under the drill part 300 , and both sides of the pipe 10 are attached to the fixing chuck 600 . fixing; After machining the hole 11 on the outer periphery by the drill part 300, the fixing chuck 600 releasing the fixing of the pipe (10); The pipe 10 in which the hole 11 is formed by the drill part 300 is advanced by the transfer bed 200 and moved to the lower part of the tee forming part 400, and both sides of the pipe 10 are fixed with a chuck. fixing to (600); inserting the conical member 410 inside the hole of the pipe 10 by the operator; The operator inserts the connecting rod 420 into the hole 11 of the pipe 10 to combine with the conical member 410; fastening the connecting rod 420 to the T-shaped cylinder 430; elevating the tee-forming cylinder 430 to pull out the conical member 410 to the outside of the pipe 10; after the edge of the hole 11 of the pipe 10 is elongated and expanded to form the protrusion 12 outwardly, the fixing chuck 600 releasing the fixing of the pipe 10; a step of advancing the pipe 10 in which the protrusion 12 is formed in the tee forming part 400 and transferring it to the lower part of the cutting part 500, and fixing both sides of the pipe 10 with a fixing chuck 600; a step in which the upper part of the protrusion part 12 of the pipe 10 is smoothed by the cutting part 500; When the cutting is completed, the step of taking out the pipe 10 from the fixed chuck 600; The protrusion 12 to which the pipe member is connected to the pipe 10 is formed sequentially.

Therefore, according to the present invention, the work process is shortened, the manpower waste is improved, the production of products of precise and uniform quality is possible, the forming operation on several pipes is possible with one setting, and the drawing standard is not limited. There is a remarkable effect of improving the quality of products and enabling mass production.

10: pipe 11: hole
12: protrusion
100: support frame 200: transfer bed
210: block 300: drill part
400: tee forming part 410: conical member
420: connecting rod 430: tee forming cylinder
500: cutting machine 600: fixed chuck

Claims (3)

After coupling the block 210 to the transfer bed 200, seating the pipe 10 on the upper surface of the block;
machining a hole 11 in the form of a long hole in the outer periphery of the pipe 10 transferred to the drill part 300 by the transfer bed 200;
The conical member 410 is inserted inside the hole 11 of the pipe 10 transferred to the tee forming part 300 by the transfer bed 200 , and the connecting rod 420 is inserted into the hole 11 of the pipe 10 . ) to be inserted into the conical member 410 and coupled, the connecting rod 420 is fastened with the tee forming cylinder 430, and then the tee forming cylinder is raised and lowered to insert the conical member 410 into the hole of the pipe 10 ( 11) pulling out to the outside, the outer periphery of the hole 11 of the pipe 10 protrudes upward to form a protrusion 12; including,
The step of forming the protrusion 12 includes processing the upper surface of the protrusion 12 of the pipe 10 transferred to the cutting part 500 by the transfer bed 200; will include more
The hole 11 formed on the outer periphery of the pipe 10 by the drill part 300 is in the form of a long hole, and a protrusion 12 having a circular cross section in the tee forming part 400 is formed in the hole 11 . In the method of manufacturing a tee-type pipe using a tee forming machine,
The tea forming machine includes a support frame 100, a transfer bed 200 installed on the upper surface of the support frame and moving forward and backward, on which a pipe is seated, and left and right fixing for fixing the pipe mounted on the transfer bed. The chuck 600, the drill part 300 installed on the upper part of the support frame to form a hole in the pipe, and the conical member 410 inside the hole 11 formed by the drill part and pulled outward It consists of a tee forming part 400 for forming the protrusion 12, and a cutting part 500 for cutting the upper end of the protrusion,
The transfer bed 200 is installed on the upper surface of the support frame 100 and moves forward and backward in the longitudinal direction of the support frame, the block 210 is coupled to the upper surface, and the pipe 10 is seated on the upper surface of the block. will,
A pair of left and right fixing chucks 600 for fixing the pipe are installed on both sides of the block 210 on which the pipe 10 is seated, and the left and right fixing chucks face each other so that the pipe is positioned therebetween. As configured to look, the pair of fixing chucks 600 are expanded and contracted by the cylinder to fix the pipe,
The conical member 410 and the tee forming cylinder 430 for pulling the conical member are coupled by a connecting rod 420, and the upper portion of the connecting rod 420 is mounted on the tee forming cylinder 430, and the lower portion is a cone. It is detachably coupled to the member 410,
A screw surface is formed on the lower outer periphery of the connecting rod 420, and a screw surface is also formed on the inner periphery of the conical member 410 coupled to the lower portion of the connecting rod, the connecting rod and the conical member are screwed together ,
The conical member 410 has a conical shape and a vertical cross-section is formed in a trapezoidal shape with a larger area at the lower part than the upper part, and the conical member 410 is put inside the hole 11 of the pipe 10 and from the inside of the hole to the outside. By pulling the conical member, the edge of the hole 11 of the pipe is extended and expanded to form the protrusion 12 in the outward direction.
When processing the protrusion 12 in the tee forming part 400 , in order to prevent defects such as tearing and pipe bending of the pipe 10 hole 11 , the inclination and height of the conical member 410 is the diameter of the protrusion 12 . Method of manufacturing a tee-type pipe, characterized in that it is applied differently depending on the delete delete

Images